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How to tell The miller from Fool's funnel

How they differ, how to recognize them and which is more dangerous — a mushroom comparison

Warning: Fool's funnel(Clitocybe rivulosa)

The short answer

The miller and Fool's funnel look alike, so they're easy to mix up — but The miller is edible, while Fool's funnel is poisonous. The main visible difference: use: The miller — cook fresh, pickling, Fool's funnel — not eaten. The mushrooms also differ in the following features: cap color, cap shape, substrate. If you have even the slightest doubt, leave the mushroom be.

Fool's funnel (Clitocybe rivulosa)

Fool's funnel

Clitocybe rivulosa

PoisonousExpert-verified
The miller (Clitopilus prunulus) in hand in an oak wood: a wavy white cap, decurrent pinkish-cream gills and white stem

The miller

Clitopilus prunulus

EdibleExpert-verified

📊 Comparing characteristics

⚠ Highlighted rows are the key differences between the edible and the dangerous mushroom

Comparison of characteristics: Fool's funnel and The miller
⚠ Edibility class

Fool's funnel

Poisonous

The miller

Edible
Season

Fool's funnel

SummerAutumn

The miller

SummerAutumn
⚠ Use

Fool's funnel

Not eaten

The miller

Cook freshPickling
Size

Fool's funnel

Small (up to 5 cm)

The miller

Small (up to 5 cm)
⚠ Cap color

Fool's funnel

WhiteCreamPink

The miller

WhiteCream
⚠ Cap shape

Fool's funnel

Flat

The miller

Funnel-shaped
Cap surface

Fool's funnel

Smooth

The miller

Smooth
Taste

Fool's funnel

Mild

The miller

Mild
Smell

Fool's funnel

Floury

The miller

Floury
Flesh color change

Fool's funnel

No change

The miller

No change
Hymenophore

Fool's funnel

Gilled

The miller

Gilled
Stem

Fool's funnel

Central

The miller

Central
Ring (veil)

Fool's funnel

No ring

The miller

No ring
Volva

Fool's funnel

No volva

The miller

No volva
⚠ Substrate

Fool's funnel

Soil

The miller

SoilForest litter
Nutrition type

Fool's funnel

Saprotroph

The miller

Saprotroph
⚠ Partner trees

Fool's funnel

—

The miller

OakBeechHornbeamBirch

📅 Seasonality

Fool's funnel

Fruiting season

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

August – November

The miller

Fruiting season

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

June – October

🔬 Morphology

Cap

Fool's funnel

The cap is 2-5 cm across, convex in young mushrooms, becoming flat and spread out or slightly funnel-shaped with a thin wavy margin. The color is whitish to cream, with characteristic pinkish-cream concentric zones or streaks from the center to the margin — a diagnostic feature. The surface is silky-matte; in wet weather the skin is somewhat sticky.

The miller

Cap 3-10 cm across; hemispherical in young mushrooms, later becoming convex-flat to funnel-shaped with a thin, wavy margin. Color white to cream, with a faint grayish-pink tint in old specimens. Surface smooth, dryish, slightly sticky in wet weather. The cap margin is thin.

Hymenophore

Fool's funnel

Gilled hymenophore. The gills are crowded and thin, decurrent down the stem (a feature typical of the genus Clitocybe). Whitish to pale pink. The spore print is white.

The miller

Gilled hymenophore — the gills are running down the stem (decurrent), crowded, thin. In young mushrooms — whitish, with age they become pink from the ripened pink spores. Spore print PINK — it narrows things down to a few genera, but it doesn't separate the miller from the livid pinkgill, whose print is pink too. Most gilled mushrooms have a white or brown spore print — a pink one tells you it's either the miller or an Entoloma.

Stem

Fool's funnel

The stem is 2-5 cm tall, 0.4-0.8 cm thick, slender, cylindrical, often curved. Whitish to cream, with white mycelial fuzz at the base. The surface is smooth, with no ring.

The miller

Stem 3-7 cm tall, 0.7-1.5 cm thick, cylindrical, relatively short, often tapering toward the base. Color white to cream. Surface with fine lengthwise fibers. No ring and no volva.

Flesh

Fool's funnel

The flesh is thin, white, watery and brittle. It does not change color when cut. A faint, sweetish smell and mild taste — dangerously "normal".

The miller

Flesh firm, white, when cut it doesn't change color. Smell distinctly mealy — like raw dough or freshly milled grain — the most characteristic feature of the species.

Smell

Fool's funnel

Faint, sweetish and not distinctive. Nothing alarming. The taste is mild. Neither smell nor taste gives away that it is poisonous.

The miller

Distinctly mealy and pleasant, like raw dough or freshly milled grain (Russian sources call it "the smell of cucumber flour"). Fresh, not rancid — this sets it apart from the livid pinkgill, whose smell is also mealy, but with a sour or rancid note.

📍 Habitats

Fool's funnel

MeadowField

The miller

Deciduous forestMixed forest

👀 Similar mushrooms — don't mix them up!

❓ Frequently asked questions

Can The miller and Fool's funnel be mixed up?
Yes. These species look alike, and Fool's funnel is poisonous, so a mistake is dangerous. Pay attention to the use, cap color, cap shape.
How to tell The miller from Fool's funnel?
The main differences: use: The miller — cook fresh, pickling, Fool's funnel — not eaten; cap color: The miller — white, cream, Fool's funnel — white, cream, pink; cap shape: The miller — funnel-shaped, Fool's funnel — flat. As for edibility: The miller is edible, Fool's funnel is poisonous. The full table of characteristics is higher up on this page.
Which is more dangerous — The miller or Fool's funnel?
More dangerous: Fool's funnel, which is poisonous. The miller is edible. If you have even the slightest doubt, don't pick the mushroom.
Is Fool's funnel edible?
Fool's funnel — poisonous. It must not be picked or eaten.
When do The miller and Fool's funnel grow?
The miller — June–October; Fool's funnel — August–November.

Sources

  • [1]Вікіпедія (українська)
  • [2]Атлас грибів України, Зеров Д.К. (1979)
  • [3]MycoBank Database
  • [4]Index Fungorum
  • [5]GBIF
  • [6]iNaturalist Ukraine